Centrifugal separator.



W. R. MAGKLIND.

CENTRIFUGAL SBPARATOR.

APPLICATION FILED AUG.17, 1910.

1,001,661. Patented Aug. 29, 1911.

6 BHEETS-SHEET 1.

W. R. MAUKLIND.

UENTRIFUGAL ELBPARATOB.

APPLICATION FILED AUG. 17, 1910.

s SHEETSSHEET 2.

Patented A 29 m.

W. R. MAOKLIND.

GENTRIFUGAL SEPARATOR. APPLICATION FILED AUG. 17, 1910.

1,001,661., Patented Aug.29,1911.

6 SHEETS-SHEET 3.

W. R. MACKLIND.

CENTRIFUGAL SEPARATOR.

APPLICATION FILED AUG. 17, 1910.

Patented Aug. 29, 1911.

5 SHEETSSHBET 4.

lllb. L IF I fllllllll W. R. MAOKLIND. GENTRIFUGAL SEPARATOR.

APPLICATION IILEjJ AUG. 17, 1910. 1,,GOL66L Patented Aug.29, 1911.

5 SHEETS-SHEET 5.

PATENT OFFICE.

WILLIAM R MACKLIND, OF MINERAL POINT, MISSOURI.

CENTRIFUG-AL SEPARATOR.

Specification of Letters Patent.

Patented Aug. 29, 1911.

Application filed August 17, 1910. Serial No. 577,676.

To all 'wkom it may concern:

Be it known that I, WILLIAM R. MACK- LINI), a citizen of the United States, residing at the city of Mineral Point, in the county of \Vashington and State of Missouri, have invented certain new and useful Improvements in Centrifugal Separators, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to centrifugal separators, and has for its object to provide an improved machine that is particularly adapted to move the material, such as spent grains, fibrous material, etc., through a spiral path with sufficient speed to cause the liquid to discharge centrifugally from the material.

In the accompanying drawings forming part of this specification, in which like numbers of reference denote like parts wherever they occur, Figure 1 is a vertical section of a centrifugal separator embodying this in vention; Fig. 2 is a sectional view on the line 2-2, Fig. 1; Fig. 3 is a sectional view, on an enlarged scale, on the line 3--3, Fig. 2; Fig. 4 is a sectional view, on an enlarged Scale, on the line 44t-, Fig. 2; Fig. 5 is asectional view on the line 55, Fig. 2; Fig. 6 is a top plan view of the driving means; Fig. 7 is a sectional view, on an enlarged scale, on the line 77, Fig. 1; Fig. 8 is a sectional view on the line 88, Fig. 1; and Fig. 9 is a sectional View, on an enlarged scale, on the line 9-9, Fig. 1. r

The lower end of shaft 1 is supported on ball-bearing washers 2 that rest upon basecasting 3 and is journaled in ball-bearing collars 4. that rest in depression 5 in said base, said Washers being prevented from rising by members 6. The upper end of said shaft passes through an opening in the top casting 7 and bears a cap 8 that is journaled in ball-bearing collars 9., supported on the top casting 8. Said top casting bears a cover 10 to protect the ball-bearin collars 9, and is supported on standar s 11, said standards being secured to base casting '3 and supported bybraces 12.

A hopper 13 is arranged adjacent the upper part of shaft 1 and is supported by means of an angle-iron 14 that is riveted or otherwise secured to brackets 15, borne by standards 11, said hopper being preferably somewhat conical in sha e and encircling the upper part of said shaft. The lower end of said hopper projects into the opening or throat 16 in the upper part of a hollow casting 17, said opening being preferably cylindrical in shape and the lower part of said casting being conical and larger diametrically at the bottom than adjacent said opening. A tube 18 is supported from top casting 7 by means of an angleiron 19, or the like, and is arranged to en- ,circle the shaft 1, in order to protect the part of said shaft that is surrounded by hopper 13 from the material that enters said hopper. Casting 17 bears a circumferential cup 20 that supports one of the ballbearing collars 21, in which the cylindrical part of said casting is journaled. The cylindrical part 22 of a casting 23 projects into the interior of cup 20 and bears a flange 24 that supports the other ball-bearing collar 21, said casting 23 being supported from standards 11. Said ball-bearing collars 21 are prevented from rising by a pair of angle-irons 25, one of said angle-irons being fastened. to the casting 17 and the other of said angle-irons being secured to the cylindrical part 22 of casting 23. The lower part of casting 17 bears a flange 26 which is bolted or otherwise secured to collar 27 borne by the upper end of a hollow cylindrical casing 28. The lower end of casing 28 bears a collar 29 that is bolted or secured by any other suitable means to flange 3O borne by a hollow casting 31, said casting being preferably conical in shape and diametrically smaller at the bottom than at the top. Said casting 31 bears a plurality of discharge spouts 32 that deliver the material from the interior of same. A hollow cylindrical casing 33 is arranged within casing 28 and is formed diametrically smaller than casing 33 so that a space 34 1sleft between said casings. Casing 33 is preferably formed of a plurality of metal; rings that are arranged one and are joined together by means of a lurality of splice rings 35. The upper en of above another casing 33l-cars a collar 36 that is secured to the upper end of casing 28 and the lower end of casing 33 bears a similar collar 36 that is secured to the lower end of casing 28.

Casting 31 is preferably conical in shape and diametrically smaller at the bottom than at the top, the lower part of said casting being loosely mounted on shaft 1 and arranged to rest upon ball-bearing collars 37 that are supported on housing 38, borne by base casting 3. Said housing surrounds the lower part of shaft 1 and bears a hollow cylindrical projection 39 that contains ball-bearing collars 40 in which the lower part of casting 31 is journaled, said collars being supported by means of a nut 41 borne by the lower part of casting 31 and being prevented from rising by flange 42, borne by said casting. The casings 28 and 33 are perforated at 43 and 44, respectively, in order to allow the liquid to discharge centrifugally from the material that travels through the interior of casing 28 in the manner hereinafter described. A casing 45 surrounds casing 28 in order to catch the liquid that discharges centrifugally from the perforations 43 in said casing 28 and bears angle-irons 46, or the like, one of said angle-irons being riveted or otherwise secured to brackets 47, fastened to standards 11, and another of said angle-irons being supported from standards 11 by means of brackets 48. An annular trough 49 is arranged beneath casing 45 in order to receive the liquid that discharges into said casing, and bears an angle-iron 50, or the like, that is secured to the lower angle-iron 46 of said casing 45. A shield 51 is secured to collar 29 of casing 28 and is provided with a depending flange 52 in order to cause the liquid that flows down the outside of casing 28 to discharge into said trough. The liquid that enters trough 49 discharges through a plurality of outlet pipes 53 that are connected thereto.

A spiral conveyer-blade 54 is secured to shaft 1 and is arranged to feed the material through the opening 16 into the interior of casting 17. A hollow cylindrical member 55 surrounds the part of shaft 1 that eX- tends through the interior of casing 33 and bears a spiral conveyer-blade 56 which is arranged to feed the material through the interior of said casing. Member 55 is provided with conical ends 57 which are secured to shaft 1. The upper end 57 of member 55 projects into the interior of casting 17 in order to deflect the material from conveyenblade 54 to conveyer-blade 56. The lower end 57 projects into the interior of casting 31 and bears an angle-iron 58 that is arranged to deflect thematerial into the discharge spouts 32. A passage 59 extends longitudinally into the upper end of shaft 1 and opens into the upper part of the interior of member 55, the upper end of said passage being screw threaded to receive a pipe 60 in which heat in the form of steam, hot water, etc., is introduced. The heat discharges from said passage into the interior of member 55 in order to heat said member and thereby radiate into the interior of casing 33 with the result that the material becomes heated in passing through the interior of said casing whereby the material is caused to give off its moisture which discharges centrifugally therefrom and flows through perforations 43 and 44 into casing 45. A passage 61 extends longitudinally through the lower part of shaft 1 and opens into the lower part of the interior of member 55 in order to allow the heat to discharge from the interior of said member. A pipe 62 is attached to the lower end of shaft 1 and allows the heat to exhaustfrom passage 61.

The pulley 63 is preferably formed integrally with casting 31 and is driven by belt 64, which passes over idlers 65, and is, in turn, driven by band-wheel 66 mounted on shaft v67, which receives its power from pulley 68'. The pulley 68 is driven by belt 69 that receives its power from any suitable source and, when it is desired to stop the operation of the machine, said belt 69 can be shifted from the tight pulley 68 to the loose pulley 70. The idlers 65 are mounted on shaft 71 that is journaled in standards 72 fastened to support 73, said support being bolted or otherwise secured to base casting 3. Shaft 67 is journaled in arms 74 that project from support 73. The pulley 75 is rigidly mounted on shaft 1 and is preferably located within housing 38. Said pulley 75 is driven byv belt 76, which passes through an opening in the side of housing 38 and over idlers 77, and is, in turn, driven by band wheel 78 mounted on shaft 67,

saididlers 77 being mounted on shaft 79 journaled in standards 80 that are secured to sup ort 73. When the shaft 67 is rotated the and-wheels 66 and 78 cause the belts 64 and 76 to drive pulleys 63 and 75, respectively, in one direction with the result that casting 31 and shaft l'are caused to rotate in the same direction. As the shaft 1 and casting 3-1 are rotated, as hereinabove described, the cylindrical member 55 and the spiral conveyer-blades 56 and 54 rotate in the same direction as casings 33 and 28' and casting 17, and for thisreason the pulley 75 is preferably formed diametrically smaller than pulley 63 so that said conveyer-blades 54 and 56 are caused to rotate at a higher rate of speed than casting 17 and casing 33 from falling upon said belts.

the like, said bell 82 being supported from standards 11 by means of brackets 84. Bells 81 and 82 partly encircle housing38- and form the walls of -a receiving chamber 85 into which the material discharges from spouts 32. Adjacent one side of the machine the bells 81 and 82 are cut away to form an opening 86 to allow the belts 64 and 76 to pass therethrough, and are connected by means of a plate 87 to prevent the material An annular trough 88 is arranged beneath the chamber 85 in order to receive the material that discharges therefrom and is provided with an opening 89 through which the material is caused to discharge by scrapers 91 into an opening 90 in base casting 3, the opening 90 being arranged to discharge the material to a receptacle, conveyer, etc. (not shown in the drawings). Each scraper 91 is provided with a U-shaped frame 92, which extends across the top of trough 88 and project-s downwardly adjacent the sides of said trough. The inner side of trough 88 bears an annular projection 93 that projects into a notch 94 in arm 95'offrame 92, and the other side of trough 88 bears an annular projection 96 which projects into a notch 97 in arm 98 of frame 92 inorder to support said frame and, also, to guide same. Each frame 92 is connected to a frame 92 adjacent theretoby means of a rod or rods 99 so that all of said frames are caused to move simultaneously. A member 100 is pivoted at 101 to arm 98 of frame 92, and bears a roller 102, said roller being pivoted at 103 to said member and being preferably grooved circumferentially in order to ride upon the annular projection 96 of trough 88.

An endless rope 104, ,or the like, encircles trough 88'and travels in engagement with rollers 102 in order to cause said rollers to ride along the annular projection 96 with the result that scrapers 91 move circumferentially in trough 88 and carry with them any material that has fallen into said trough from the receiving chamber 85, thereby causing the material to dischargethrough openings 89 and 90. Said rope passesbetween a pair of idlers 105 and receives its power from any suitable source, said idlers being pivoted at 106, respectively, to members 107 fastened to base casting 3.

The operation ofthe machine is as follows: The material, such as spent grains, fibrous pulps, or the like, is fed by any suitable means into hopper 13. Power is applied to belts 64 and 76, thereby causing casings 28 and 33, castings 17 and 31, and shaft 1 to rotate in the same direction. The

shaft 1 rotates at a higher rate of speed than casings 28 and 33 and castings 17 and 31 with the result that the spiral conveyerblade 54 feeds the material from hopper 13 into the interior of casting 17. The material that enters the interior of casting 17 is defiected into engagement with the spiral con- Veyer-blade 50 by the upper conical end 57 of member-55. The conveyer-blade 50 moves the material through the interior of casing 33 and discharges same into the interior of casting 31 The material that enters the interior of casting 31 discharges through spouts 32 into the receiving chamber 85 and then falls int-o the trough 88 from which it is caused to discharge through openings 89 and 90 by the scraper 91, as hereinabove described. As the spiral conveyer-blade 56 rotates in the same direction as and at a higher rate of speed than casings 33, the material is not only caused to move through the interior of said casing but is caused to rotate with said casing with the result that the centrifugal force causes the material to press against the inner wall of casing 33, thereby causing the liquid that is combined through perforations 44 into space 34 and then through perforations 43 into the interior of casing 45. The heat that radiates from member 55, as hereinabove described, causes the material to give up its moisture so that all of the liquid with which the material is combined is separated therefrom by the time the material discharges from spouts 32. The liquid that discharges into the interior of casing 45 flows into trough 49 and then escapes through outlet pipes 53.

I claim: j

1. In a centrifugal separator, the combination of a vertical shaft, a perforated casing rotatable about said shaft, a hollow cylindrical member borne by said shaft and being revoluble in said casing, a spiral conveyerblade borne by said member and adapted to feed the material through the interior of said casing, one end of said shaft having an inlet passage to conduct heating media to the interior of said member, the other end of said shaft having an outlet passage to exhaust the heating media from the interior of said member, means for rotating said shaft, and means for rotating said casing so that the material rotates therewith, the liquid in the material thereby being caused to discharge centrifugally through the perforations in said casing.

2. In a centrifugal. separator, a revoluble casing, a shaft extending through the casing, a hollow cylindrical member carried by the shaft and arranged in said casing, a spiral conveyer-blade carried by said hollow member, said member having conical ends whichengage the shaft, said shaft having an axial opening which leads inwardly from one end thereof and terminates adj acent the corresponding end of the cylinder and also having a second axial opening which leads from the opposite end of the shaft and terminates adjacent the opposite end of the cylinder whereby heating media may be introduced into one end of the shaft and egress through the opposite end of the shaft.

3. In a centrifugal separator, a supporting frame, a revoluble casing composed of a perforated cylinder, a member secured to the bottom of said cylinder and formed with a series of downwardly directed discharge spouts, a member secured to the upper end of said cylinder, means for rotatably supporting said second member from the frame, means carried by the frame to engage the first member to hold the same against downward movement, a rotatable conveyer in said cylinder, an annular receiving chamber having its upper portion in communication with said discharge spouts and its lower portion inclined and directed downwardly, an annular trough underlying the bottom end of said receiving chamber, and formed with an outlet, and means operating in the trough to move the material into said outlet. I

4. In a centrifugal separator, a rotatable casing, a rotatable conveyer in the casing, a series of discharge spouts at the lower end of the casing, rotatable therewith, a stationary receiving chamber below the casing having its up er end open and receiving therein said discharge spouts, said chamber being inclined downwardly and having its lower end open, a trough underlying the open lower end of said chamber, and formed with an outlet, and scrapers to move the ma- I terial collected in the trough to said outlet.

5. In a centrifugal separator, a casing, a shaft in the casin a conveyer carried by the shaft, said shaft having openings therein, said openings being located at opposite ends of the shaft and extending through said shaft ends and terminating in spaced relation on the interior of the casing whereby heating media may ingress through one of the openings and egress through the other opening.

6. In a centrifugal separator, a frame having a base, a rotary centrifugal receiver carried by the frame, a plurallty of out- 'wardly extending discharge spouts carried by the receiver at the base thereof, an annular trough arranged on the base and having its top open and a bell-like receiving chamber supported by the frame and arranged between the receiver bottom and the trough, said chamber having its upper end open to receive the discharge spouts on the interior thereof, and having its lower end open and arranged to overlie the said open top end of the trough, in close proximity thereto.

7. In a centrifugal separator, in combination with separating means, an annular trough havingadlscharge opening, members slidably mounted on said trough, means connecting said members with one another,

ers projecting from said members into the interior of said trough adapted to move the material discharged into the trough to the discharge opening thereof, each of said members having an arm pivoted thereto, a roller borne by the arm, and an endless rope traveling in engagement with said rollers to cause same to ride along one of said projections.

9. In a centrifugal separator, a casing, a hollow member rotatable in the casing, a conveyer blade secured about the exterior of said hollow member, means leading into' one end of the hollow member to introduce heating media into the interior of said hollow member and means leading from the opposite end of said hollowmember to permit of the egress of the heating media.

10. In a centrifugal separator, in combination with separating means, an annular trough having. a discharge, a series of substantially inverted U-shaped frames slidably mounted with respect to the trough, a scraper depending from each frame into the trough, means to connect all of the frames together so that same move in unison, and means to operate said frames.

11. In a centrifugal separator, in combination with separating means, an annular trough having a discharge, a series of substantially inverted U-shaped frames slidone side, one arm of each of said frames be-' ing'formed with a notch which receives said annular projection. v

12. In a centrifugal separator, a frame having a base, a rotary centrifugal receiver carried by the frame, a plurality of outwardly extending discharge spouts carried by the receiver at the base thereof, an annu lar trough arranged on the base and having its top open and a bell-like receiving chamber supported by the frame and arranged between the receiver bottom and the trough, said chamber having its upper end open to receive the discharge spouts on the interior thereof, and having its lower end open and arranged to overlie'the said open top end of the trough in spaced relation thereto, said trough having a discharge, and means operating in the trough and in the said space between the top end thereof and the lower end of the receiving chamber to move the material collected in the trough to" said discharge thereof.

In testimony whereof I have hereunto aflixed my signature in the presence of two Witnesses.

WILLIAM R. MACKLIND. Witnesses:

EDW. WALLACE, FRED A. VEDINES. 

